I have completed an early version of this plugin. Feel free to download it! The administrative page is fairly bare but it does the job.

The information below is deprecated. Please review the patchset page for more information.

Update May 28th

I’ve gotten a plugin mostly written that accomplishes roughly what the patch here sets out. I haven’t finished the administrative section quite yet, but I expect to have something written by this weekend!

I was digging around the WordPress Codex today trying to figure out if there were a way to customize the output generated by the “teaser” options to the template function the_content(). Unfortunately, nothing is provided for supplying “before” and “after” wrappers as there exists with most other WordPress template functions. So, I’ve added this functionality myself. I suppose it would be better implemented as a WordPress plugin since it’s filter system is pretty powerful, but I honestly can’t be bothered learning their API just yet (give it time!). It does require a minor modification to the WP source as follows:

Since this does require a patch to the WordPress sources (a small one, admittedly), I’d probably suggest holding off on using it until I write a plugin. I’m sure there’s one that already has this functionality. :)